The Upper River Taw Observatory monitors water quality and flow at multiple points within the Pecketford catchment, tracking indicators including nitrate levels, turbidity, dissolved oxygen, and flow rate. The team needed a professional, publication-ready site map to clearly communicate the catchment geography, monitoring station locations, land cover types, and key infrastructure.

Yusheng provided a draft GIS map produced in ArcGIS as a starting point, along with an SVG export to ensure accuracy. The SVG was used as the base layer to precisely trace the catchment boundary, river network, and monitoring station positions before the illustration was rebuilt as a clean vector graphic.

From there, the colour scheme was redesigned to improve visual clarity and professional presentation: land cover categories were given a more refined, coherent palette, and the overall layout was tightened. Custom icons were designed for the legend and monitoring items, replacing the plain marker symbols in the original draft with purpose-drawn graphics that better suit a published or presentation context.

The finished map shows the Pecketford catchment boundary, the upper River Taw, the North Wyke Farm Platform, three monitoring stations including Pecketsford (upstream), Upper Ratcombe, and Lower Ratcombe, and the Met Office weather station at North Wyke. The land cover legend covers eight categories from acid grassland and bog to improved and rough low-productivity grassland.

Final files were delivered in PDF, JPEG, PNG, and .AI formats at A4 portrait size, suitable for research publications, reports, and presentations.